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Nuking disks of an HP Storageworks VA

Ralph Grothe
Honored Contributor

Nuking disks of an HP Storageworks VA

Hi,

I was asked to decommission an SG Cluster with attched storage in an HP Virtual Array.

Before I have the irons picked up for scrapping I would like to safely wipe out/"shred" the storage.

For the Root disks I know some commands/procedures I could execute to achieve this.
However, I am not so sure what to do with the VA's disks.

I guess that a mere

# armfmt -f -h

would not quite suffice?

Could I simply write dd patterns on the array's LUNs after having reformatted it by the above command, much as I would do with the root disks?

Regards
Ralph
Madness, thy name is system administration
11 REPLIES
Horia Chirculescu
Honored Contributor

Re: Nuking disks of an HP Storageworks VA

Hello, Ralph

Why not? Just do it before you trash your root disks. It is much easy to do it :-)

Best regards,
Horia.
Best regards from Romania,
Horia.
Ralph Grothe
Honored Contributor

Re: Nuking disks of an HP Storageworks VA

Hello Horia,

yes, I issued the command (after I had removed the cluster shared VGs),
whereupon all PVs/LUNs disappeared from ioscan.

I was only wary if that would be enough.
Well, the data of the array was anyway scattered across the disks and seems unlikely to be retrieved from the disjointed lot now to me.

Or could this maybe even be "improved" by setting up a new array for the sole purpose of wiping each disk by writing nulls or patterns on them?
Madness, thy name is system administration
mvpel
Trusted Contributor

Re: Nuking disks of an HP Storageworks VA

In the classified computing environments where I work, disks are physically destroyed (drilled, shredded, etc) when the system is declassified.

But when disks are moved from one classified program to another, we use the "BCWipe" utility - http://www.jetico.com/wiping-bcwipe/ - which complies with the DoD 5220.22-M standard. It's available for HP-UX 11 and a variety of other UNIX platforms.

You can download a 21-day eval copy, or just buy a full version for 40 Euro ($57.45 US).
mvpel
Trusted Contributor

Re: Nuking disks of an HP Storageworks VA

PS: DoD 5220.22-M is the National Industrial Security Program Operating Manual (NISPOM), and the term it uses for a "disk wipe" procedure is "sanitization," though that term can apply to other types of hardware as well, such as EEPROM contents.
Torsten.
Acclaimed Contributor

Re: Nuking disks of an HP Storageworks VA

If you have a DS2405 enclosure as an expansion of the VA, you can connect it directly to the server and format the disks using command view.

This will format the disks from 520byte blocks back to 512 blocks.

Hope this helps!
Regards
Torsten.

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Steven E. Protter
Exalted Contributor

Re: Nuking disks of an HP Storageworks VA

Shalom Ralph,

I do not believe your commands will suffice.

In general, installing an operating system and writing data to the disks is sufficient to stop all but the NSA from recovering data from your disks.

dd patterns can work, but must be run many times to insure the data can not be recovered.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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VK2COT
Honored Contributor

Re: Nuking disks of an HP Storageworks VA

Hello,

If you are using recent version of HP-UX 11.31 that you can use a native tool for
disk "cleanup". HP-UX is the only commercial
Unix that has a DoD 5220.22-M compliant
disk scrubbing tool without paying anything
extra.

Check mediainit(1) on HP-UX 11.31.

Cheers,

VK2COT
VK2COT - Dusan Baljevic
VK2COT
Honored Contributor

Re: Nuking disks of an HP Storageworks VA

... and to see if your version of mediainit(1) supports disk scrubbing simply run the
command:

# mediainit
usage: mediainit [-vrn] [-f fmt_optn] [-i interleave] [-p partition_size] pathname
usage: mediainit -S [-V] [-t scrub_count] [-c scrub_character] special_file

Of course, if you want commercial tools, there are plenty of them.

VK2COT
VK2COT - Dusan Baljevic
Horia Chirculescu
Honored Contributor

Re: Nuking disks of an HP Storageworks VA

Hello,

>mediainit -S [-V] [-t scrub_count] [-c scrub_character

Just wanted to say that mediainit's disk scrubbing facility is not avaiallable in all HP-UX versions (no -c , -t option).

You can read also another topic:
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=458247

Format and then random writing of dd patterns should do the job.

But, you can allway get some caterpillar to run over your media

Just rent a similar hardware:

http://www.cat.com/equipment/track-loaders/small-track-loaders?mode

Ultimate solution? Or not. Maybe some US gov. agency guy would get some glue and would repair the small pieces of hardware and would re-construct the lost data. Just imagine ...

Best regards,
Horia.
Best regards from Romania,
Horia.
mvpel
Trusted Contributor

Re: Nuking disks of an HP Storageworks VA

http://www.vernontech.ca/en/data-destruction/hard-disk-crusher.aspx

With the Hard Disk Crusher you can crush over 60 disks an hour. It drills through the hard disk's spindles and physically creates ripples in the platters making it impossible to recover the data.

The Hard Disk Crusher is durable and transportable. It uses a standard 110 outlet and can crush a disk in 10 seconds. The destruction chamber is made of case hardened steel. Its unique safety features ensure that the crushing device will not operate unless the safety door is shut. If someone opens the door while a disk is in the process of being crushed, the crusher will shut off
Torsten.
Acclaimed Contributor

Re: Nuking disks of an HP Storageworks VA

Cool video, but I'm not sure if this really is what Ralph wants ... ;-)

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!